Version 4
SHEET 1 5945676 13421556
WIRE 1536 -128 1408 -128
WIRE 1888 -128 1760 -128
WIRE 2224 -128 2096 -128
WIRE 2576 -128 2448 -128
WIRE 1440 -48 1424 -48
WIRE 1536 -48 1536 -128
WIRE 1536 -48 1520 -48
WIRE 1792 -48 1776 -48
WIRE 1888 -48 1888 -128
WIRE 1888 -48 1872 -48
WIRE 2128 -48 2112 -48
WIRE 2224 -48 2224 -128
WIRE 2224 -48 2208 -48
WIRE 2480 -48 2464 -48
WIRE 2576 -48 2576 -128
WIRE 2576 -48 2560 -48
WIRE 1232 0 1152 0
WIRE 1344 0 1344 -128
WIRE 1344 0 1312 0
WIRE 1888 0 1888 -48
WIRE 1920 0 1888 0
WIRE 2032 0 2032 -128
WIRE 2032 0 2000 0
WIRE 1344 64 1344 0
WIRE 1424 64 1424 -48
WIRE 1424 64 1408 64
WIRE 1456 64 1424 64
WIRE 1536 64 1536 -48
WIRE 1584 64 1536 64
WIRE 1696 64 1696 -128
WIRE 1696 64 1664 64
WIRE 1776 64 1776 -48
WIRE 1776 64 1760 64
WIRE 1808 64 1776 64
WIRE 2032 64 2032 0
WIRE 2112 64 2112 -48
WIRE 2112 64 2096 64
WIRE 2144 64 2112 64
WIRE 2224 64 2224 -48
WIRE 2272 64 2224 64
WIRE 2384 64 2384 -128
WIRE 2384 64 2352 64
WIRE 2464 64 2464 -48
WIRE 2464 64 2448 64
WIRE 2496 64 2464 64
WIRE 1152 80 1152 0
WIRE 1536 80 1536 64
WIRE 1536 80 1520 80
WIRE 1888 80 1888 0
WIRE 1888 80 1872 80
WIRE 2224 80 2224 64
WIRE 2224 80 2208 80
WIRE 2576 80 2576 -48
WIRE 2576 80 2560 80
WIRE 1456 96 1424 96
WIRE 1808 96 1776 96
WIRE 2144 96 2112 96
WIRE 2496 96 2464 96
WIRE 1152 176 1152 160
FLAG 1152 176 0
FLAG 1424 96 0
FLAG 1776 96 0
FLAG 2112 96 0
FLAG 2464 96 0
SYMBOL voltage 1152 64 R0
SYMATTR InstName V1
SYMATTR Value AC 1.
SYMBOL res 1328 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res 1536 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL cap 1408 48 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 22n
SYMBOL cap 1408 -144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 22n
SYMBOL OPAMPS\\OPAMP 1488 16 R0
SYMATTR InstName U1
SYMBOL res 1888 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL cap 1760 48 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 3,3n
SYMBOL cap 1760 -144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 3,3n
SYMBOL OPAMPS\\OPAMP 1840 16 R0
SYMATTR InstName U2
SYMBOL res 1680 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL res 2016 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL res 2224 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 100k
SYMBOL cap 2096 48 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 15n
SYMBOL cap 2096 -144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 15n
SYMBOL OPAMPS\\OPAMP 2176 16 R0
SYMATTR InstName U3
SYMBOL res 2576 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 100k
SYMBOL cap 2448 48 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 2,2n
SYMBOL cap 2448 -144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value 2,2n
SYMBOL OPAMPS\\OPAMP 2528 16 R0
SYMATTR InstName U4
SYMBOL res 2368 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 10K
TEXT 1856 200 Left 2 !.ac oct 25 20 20K
TEXT 1856 240 Left 2 !.include opamp.sub